html, body {
    max-width: 100%;
    overflow-x: hidden;
}
.m_banner{
	padding: 8px;
    font-size: 18px;
	width: 100%;
}
.collapse {
  display: none;
}
.collapse.in {
  display: block;
}
tr.collapse.in {
  display: table-row;
}
tbody.collapse.in {
  display: table-row-group;
}
.collapsing {
  position: relative;
  height: 0;
  overflow: hidden;
  -webkit-transition-property: height, visibility;
  transition-property: height, visibility;
  -webkit-transition-duration: 0.35s;
  transition-duration: 0.35s;
  -webkit-transition-timing-function: ease;
  transition-timing-function: ease;
}
.caret {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 2px;
  vertical-align: middle;
  border-top: 4px dashed;
  border-top: 4px solid \9;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
}
.panel-collapse:before{
    display: table;
    content: " ";
}
.panel-collapse:after{
	clear: both;
	display: table;
    content: " ";
	-webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}